Electrical type-writer.



PATENTED JAN. 1, 1907.

G. W. DONNING. ELECTRICAL TYPE WRITER.

APPLIUA'IIIOH FILED MAY 27. 1903.

. eaygwbngzzny.

. means for '..operating the t "levers; v

N ED STATES PnTENT orrrony GE QRG WQ license, OF EAST ORANGE, NEWJERSEY, AssIe'NoR To HARRY T. AMBROSE, OF ORANGE,

ELECTRICAL naseousi.

Specification of Letters Patent.- Application filed May Z'l. 1903-Serial No. 158,964-

NEW JERSEY. TYPE-welfare.

Patented Jan. 1, 1907. i

To; all whom it may concern: i a.

= Be it known that I, GEORGE W. DoNNING, a citizen of} theUnited States,residing at East Orange, in the county of Essex, and

v State; of New Jersey, have invented certain new and useful Imrovements in Electrical e-Writers and. do hereby declare the fol-'lowing to be a full, clear, and exact description of the invention, suchas will enab e others skilled in the art to which it appertains to makeand use the same. I The object, of this invention is to provide meansfor operating the t e-bars in a type-' writer, wherein the mova ecarriage carries both the'writing mechanism and thekey-bar, e-bars froma common source of ewer, w 'lethe' selecting means are operated "Anotherobject is to provide in a typewriter an improved form of means foroperating'all of the key-bars from a common power-bar, while theselecting means is operated by the key-levers.

ran emen't, an

- arts, between the side members of the mile A are supported two rods BB A set of key-levers-C are each suspended by a pair of links C 0Aretractile springE serves to retain the links and key-lever in theirnormal 0p: erative position. The links C 0 and re't-ractlle spri' gtogether normally sustain the key-- lever in position; but when saidlever is depressed the typeebar is actuated, placing the spring E undertension, and this will'then,

. 4 after'the type bar'has reached theprinting- 3 point, serve by actingon the links C C? to return the same to normal position, and thisindependent of the operation; of any of the parts hereinafter described,

An upright lever D is pivoted to a sub,-

leyer D whose other end is connected with by the usual form ofkeyseriesof levers, type-bars and connecting parts that are arranged ra ally,asshown in the type-bars D by link D There are a At the rear of themachine is an 'el'ectro magnet'E, having an armature E pivoted thecasing. Another pair of levers E pivoted to the casing them a power-barE".

The levers E are on a rod E whose ends are supported'by a pair of leversE E, pivoted to the si es of tr'c'a and carry between each pivoted toone ofthe'leversE aiid a" retractile spring E serves to retain the:

power-bar, armature, and connectedpa'rts in their norm armature 2 thepower-bar will be moved downward.

has a foot d, bar, butnormally retained out'of the 'path'of movement ofthe power-bar bya retractile' ejpring (P. The key-levers each have anarm I a1 upper position, but when-the electromaggiet is energized andattracts the The upper portion of each thelevers D 1 projecting towardthe powerhavin a cam-face 1 that when the lever-is bring its foot (1into the path'of movement of the power-bar.

being energized, brought'an o erating-lever" D into this said position,the owerin of the' power-bar will move the lever D on wise" downward,which latter movement through 'thesublever and connecting-link willserve to rock the typebar, it being understoodthat there .is anapeackey-bar. Upon release of t they will be returned to their normal ingreturned y a co1led spring C.

'propriate operating Iever and t' eb'ar' for ese' parts.

pos1- tions, the type-bar and connected parts he depressed will'strike asimilar face2 ensue of the upright levers D, and thereby force" thelatterlever toward th'e'po'we'r bar-and" U v on the -electromag'iiet wen a key shall have Y In order to cause the m ca operating the.

power-bar to be energized by the'power-b'ar, I provide each key-lever CI y the depression of the key after the key shall have rockedtheoperatingdever D into pesition to be engaged 7 ice witha pivoteddeterit F, having at itslowe'r free end a beveled foot F an'd a lug orproj'ection 3. Arranged in the path of move ,ment of each detent is alever F one end of which is provided with a beak or projection 4, whichis designed to be engaged by the projection on the detent F, and therebybe rocked on its pivot 5 to throw its opposite tremity upward and intoengagement with r a spring terminal member F, which forms one terminalof a circuit, includin a battery or other source of power and thedlectromagnet E. The levers F 3 are all suitably connected with. theother terminals of said circuit. lherefore when any of said levers F arerocked the magnet will be energized.

It is to be understood that the lower ends of the dctents F are soarranged relative to the beak or projection t on the levers F thatduring; the initial depression of the key-levers C said detent will notimmediately engage and rock the lever to complete the circuit, but suchengagement and rocking-will occur only when the cam-face l of arm shallhave engaged sufliciezotly with the cam-face 2 on the lever I) to havebrought the lover I) into a position of enga omen-t with the poweubar.

, the key-lever, after havin rocked the opeI' iiUHgdQ'VB/I llwrll causet c detent F to be cam-face 6 and carried further down and by reason ofthe formation of a eam-fece 6 between the beveled foot F and the lug 3on the detent the local; 4 on the lever will be caused to ride alongsaid resiliency of the terminal member F Then the h1g3 on the detentwill have passed over the end of beak 4 and the lever is then allowed todisengage from the terminal F and return to its normal posit-ion,thereby breaking the circuit, and deenergize the power-bar net. of t isdetect and tends to meintainit irrnormal position. During the returnmovement ofthe key-lever to normal position thc beveled upper edge 7 ofthe lug 3 will permit'the detent to latch by the book 4 without rockingthe lever F, so that the circuit will not again be closed to energizethe magnet during the return stroke of the key-lever.

The universal power-bar E is preferably constructed in the form of asegment, so as to be in operative relation to the type-bars mounted asshown. At the rear it is conveniently provided withOPPOSltBlY-Llll'86t8d rigid arms E, which extend 'ai'allel with thefront of'the laterally-trove ing carriage A and may project somewhatbeyond "the ends of the power-bar arc. The outer ends of these arms areshown as beingbeut a'tright anglcs as at E",'and.to these angledportions are pivoted the lovers E The ends of the power-bar may beprovided with angled extensions E, to which are pivoted at E a pair ofsupplementary levers E these latter being pivoted in turn at E" to thecasing Connecting members E are pivoted at their ends to the lovers Eand E insuring the simultaneous movement of these elements. The levers Eand E thus constitute a parallel link mechanism, by means of which thetilting of the power-bar is avoided.

Then the furti or movement of cil'ect a slight further rocking of thelever F, (which is permitted by the A spring F is disposed to the real"The electromagnet may be connected with a stationary. source ofelectricity, such as a battery, by'a flexible cable that. mey'pass overa roll at the rear of the machine and then be connected with the saidsource underneath the base, sufficient slack in the cable being providedto allow for necessary longitudinal and transverse shifting of themovable carriage.

Without limiting in self to the construction and arrangement ereinbeforeset forth, what I claim as new, and desire to occurs by. Letters Patent,is-

1. The combination with a set ofdownwardly-acting I typvbars,operating-levers connected therewith, key-levers disposed edjvxcentthereto, coinciding alzouttingfaces a!" ranged on said operating and keylevers for positionin the operatingdevers in operative position, urine;movement ofthe-key levers, an operatinwbar disposed. to impinge uponsaid operating-levers, to depress the same when positioned, soelectromagnet for actusting said o eratiug-b er, and mesnsoperated bythe furt or movement of the key-levers for establishing a circuitthrough the electromagnet to energize the same, and, by still fur' thermovement of said kc -levers, for cfiect ing a discontinuance of saicircuit, and means for returning the operating-bar to operativeposition.

2. The combination with a set of downwardly-acting type-bars,operating-levers connected therewith, key-levers disposed ad jaeeutthereto, coinciding abutting faces arranged on said operating and keylevers for positioning the operating-levers in operative position,duringmovement of the key lcvers, an operating-bar disposed to impingeupon said operating-levers, to depress the same when positioned, aneletromagnet for actuating said 0 crating-bar, and means operated by thefort er movement of the key-levers for establishing a circuit throughthe electromagnet to energize the same, and,by still fun ther movementof said key-levers, for effectranged on said operating and key leversfor I positioning the operatingdevers in operative position, duringmovement of the key-levers, an operating-bar disposed to impinge uponsaid operating-levers, to depress the some when positioned,auelcctromagnet for actuc ting said operating-liar. and means operatedby the further movement of the keydevers' for establishing acircuitthrough the electromng'net to energize the same, and, by stillfor their movement of said key-levers, for effecting, a discontinuanceof said circuit, and

: crating-lever,

means for eflecting return of the 0 bar to normal scribed.

4. The combination cratingposition, substantial yvas de- With a set oftype-bars and an individual selecting device for each of said type-bars,of a power-bar for operating all of said' type-bars, and anelectromagnet for actuating said power-bar; said selecting devicecomprising an operating-lever and a key-lever movable, first, and, insuccession,

to position the operating-levers into the path of actuation of thepower-bar and, then, by continued movement to effect energizing of saidelectromagnet for actuation of said poWer oar, and, finally, by furthermove, ment, to'efiect deenergizing of the said 8166-. tromagnet to bar;an abutting ating-lever, an tapositioned to face disposed on sai operarmon said key-lever juxsaid abutting face of the op means for effecting imingement of said arm against the abutting ace to position saidoperating-lever, a spring-actuated detent carried by the key-lever and arocker-lever disposed independent of the keylever and, durin movement ofthe key-lever, cooperating with the detent for effecting energizing ofthe electromagnet to actuate the,

power-bar, substantially as described.

5. The combination of a sehof-typesbars, a set of operating-levers eachconnects one of said type-bars and arranged to operate one of the samewhen moved endwise, a stop on each of said levers, a power-bar, acam-lug on each of said levers, a set of key-levers cor' responding tosaid levers, an arm on each of the key-levers arranged toengage acam-lug on oneof thesaid operating-levers, and there-,

by rock the lever and bring its stopinto position to engage the means onthe key-levers to 0 erate said power-bar, substantially as descrl ed.

v 6. The combination of a set of type-oars, a set of operating-leverseach connected with one of said type-bars and arranged to operate one ofthe same when moved endwise, a stop on each of saidlevers, cam-lug oneach of said levers,'a power-bar, a set of key-levers corresponding tobut independent of the op crating-levers, an arm on each of thekeylevers arranged, during one part of-movement of the'key-leverstdengage th'e cam-lug on one of said operating-levers and thereby rockthe lever and bring its stop into position to engage the said power-bar,an electroniagnet arranged to operate the power-bar,

and a circuit-closerarranged to he'operated by the key-lever u on thefurther movement substantially as described. 7; Thecnmbina-tion of a setof type-,bars,:a-

set of operating-levers each connected with one of said type-bars and.arranged to operate permit return of said ower' said power-bar, and

a set. of'operating levers one of the same when moved endwise, a stop oneach of said levers, a cam-lug on each of said levers a power-bar, a setof key-levers corresponding ,to the operating-levers, an arm on each ofthe key-levers arranged, during the first part of movement of thekey-levers, to engage a cam-lug on one of said operatinglevers andthereby rock the lever and bring its stop into position to engage, saidpowerbar an electromagnet arranged to operate the power-bar, and acircuit-closer arranged to be operated by the key-lever upon a continuedmovement of the same after having rocked the said operating-lever andthereby cause the said magnet to be energized and move the power-bar,said circuit-closer being arranged to be released u on a furthermovement of the ke -bar, I an also arranged not to be operated rtherupon the return movement of the key-bar, substantially as described;

to eac "of the shafts upon which said links are pivoted, a set ofoperating-levers each connected with one of said type-bars andarrangedto operate one of the same when moved endwise, a stop on each of saidlevers, on each of said levers, a set of key-leverscorsespond-ing"to'saidlevers, an. arm on each of the key-leversarranged, during the first part of movement of/ the key-levers, toengage a cam-lug on one 0f the said operating-levers, and thereby rockthe lever and bring its stop into position to engage the said power-bar,and means on the key-levers arranged to causea further movement afterrocking said cam-lever to operate said power-bar, substantially asdescribed. r

set of operating-levers each connected with one of said type-bars, andarranged to operate one of the same when moved endwise a stop on each ofsaid levers, a segment-shaped power-bar, means for movably supportingthe power-bar so that it will remain substantially parallel with a givenplane in its several positions,'a cam-lug on' each of said levers, a.set of 'k'ey-levers corresponding to said levers, an arm on each of thekey-levers arranged to engage, during the first part of movement of thekey-levers, a cam-lug on said operating-leversand thereby rock'the leverand. bring its stop into position to ehmovement of' the same afterrocking said cam-lever, said power-bar to be operated, substantially asdescribed.

l 10. The combination of a set of type-bars,

one of said type-bars and arranged to operate oiie-of the same whenmoved endwise, a stop on each of said levers, a power-bar, a cam-lug 8.The combination of a set of type-bars, a I set of o erating-levers, apair of links pivoted operating-levers, a pair of gage the saidpower-bar, and means on the key-levers arranged to cause, upon a furthereach connected with I o 5 '9. The combination of a setof'type-bars, a

on each of said levers, a set of key-levers corresponding to saidlevers, an arm on each of the key-levers arranged to engage the camlug'on one of the said operating-levers and thereby rock'the lever and bringits stop into position toengage the said power-bar,- an

'electromagnet, an armature connected with erating-leverinto position ofengagement with the power-bar, said notched detent being arranged to berocked upon a further depression of the key-bar and release saidterminals, being also arranged to be rocked on the return movement ofthe key-lever to avoid 'the adjacent terminal lever, substantially asdescribed.

11. ,The combination with a set of operating-levers, of a set ofkey-levers, each arranged for selecting a particular operatinglever, amagnetically-operated power-bar, means operating during the depressionof the key-lever for positioning a selected operating-lever into thepath of the power-bar, a

power-bar magnet, means for energizing the power-bar magnet during thefurther depression of the key-lever, and, during an additional,continued depression of the power bar, for deenergizing the power-barmagnet, independent of the movement of the powerbar, and independentmeans connecting with the operating-levers and constructed to return thesame to normal position independent of the position and movement of thepower-bar, substantially as described.

12. The combination with a set of operating-levers, of a set ofkey-levers, each arranged for selecting a particular operatinglever, amagnetically-operated power-bar, means operating during the depressionof the key-lever for positioning a selected operating-lever into thepath of the poWer bar, a power-bar magnet, and means for energizing thepower-bar magnet during the further depression of the key-lever, and,during an additional, continued depression of the powerbar, fordeenergizing the power-bar magnet independent of the movement of thepowerbar, the power-bar and the operating-levers being constructed andrelatively arranged to permit return of the key-levers to normalposition independent of the position and movement oi" the power-bar, andthe key-lever being constructed to return to said normal positionwithout again eil'ecting energizing of 'the power-barmagnet,substantially as de-- scribed.

13., The combination with a set of operat- I ing-levers, of a set ofkey-levers, each arranged for selecting a particular operatinglever, amagnetically-oplerated power-bar, means operating during t e de ressionof the key-lever for positioning a se ected o erat' ing-lever into thepath of the pow'erer, a power-bar magnet, means for energizing thepower-bar magnet during the further depression of the key-lever, and,during an ad ditional, continued depressionof the powerbar, fordeenergizing the power-bar magnet independent of the movement of thepower bar, and means for effecting return to normal position of theoperating-levers, independent I of the movement of the key-lever,substantially as described.

14; The combination with a set of operating-levers, of a set ofkey-levers, each arranged for selecting a particular operatinglever, amagnetically-operated power-bar,

means for movably supporting the-power bar, means operating during ,thedepression of the key-lever for positioning a selected opcrating-leverinto the path of the power-bar, a power-bar magnet, means for energizingthe power-bar magnet during the further depression of the key-lever,and, during an additional continued depression of the powerbar, fordeenerg zing the power-bar magnet independent of the movement of thepowerbar, means for efi'ecting return to normal position ofthe.operating-levers independent of the movement of the key-levers, andmeans for eii'ecting return of the key-lever to normal position withoutagain energizing the powerbar magnet, substantially as describe.

15.- The combination with a series of pivoted type-bars andoperating-levrrs connected therewith, of a set of movable key-levers forselecting a particular type-bar-operating arm, a magneticallv-actuatedpower-bar arranged to operate a selec ed operating-lever to actuate atyperbar'fan electric currentcontrolling device "operat d by eachkeylever to efl'ect closing and then opening of' an electric circuitindependent of the movement of the power-bar for operating and returningthe selected 0 )erating-lever during the downstroke of the key-lever,and means constructed to return the type-bar to normal position afteractuation independent of 1 the return movement of the key-leverandtvpe-bar-opcrating-arm, substantially as described 16. Thecombination with a series of pivoted type-bars and. operating-leversconnect ed therewith, of a set of movable key-levers for selecting aparticular t \,'pe-bar operating arm, a magnetically-actuated power-bararranged to operate a selected operating-lever to actuate a t y pe-bar,an electric current-controlling device operated by each key-lever toeffect closing and then opening of an electric 5 ing return of thekey-lever to normal position without again clos1n the electric circuit,

substantially as described.

l7. The combination with a set of operating-levers, of a set ofkey-levers, each arranged-for selecting a particular operatinglever, amagnetically-operated power-bar,

means operating during the de ression of the key-lever tor positioning ase ected operating-lever into the path of the power-bar, a power-barmagnet, means for energizing the power-bar magnet during the furtherdepres sion of the key-lever, and, during an additlonal, continueddepression of the powerbar, for denergizing the power-bar magnetindependent of the movement of. the powerbar, -means foreffecting-return to normal position of the operating-levers independentof the movement of the key-levers, means for effecting return of thekey-lever to normal osition without again energizing the powerar magnet,actuating type-bars, and means constructed to return the type-bars tonormal position, after each actuation, independent of the return tonormal position of the key-lever s, substantially-as described.

18. The ombination with a set of operating-levers, of so! of keylevers,each arranged for selecting a particular operatinglever amagnetic-a1ly-operated power-bar, means operating during the depressionof the key-leverfor positioning a selected operatinglever into the path01 the power-bar, apower bar magnet, means for energizing the powerbarmagnet during the further depression of the key-lever, and, during anadditional, continued depression of the power-bar, for deenergiping thepower-bar magnet independent of the movement of the power-barfmeans foreffecting return to normal position of the power bar and theoperatii'ig-levers independent of the movement oftlie key-levers,

means for effecting return of the key-lever to normal position withoutagain energizing the power-bar magnet, actuating type-bars,

and means constructed to return each typebarto normal position, afteractuation, inde pendent of the position of the power-bar, substantiallyas described. i

In testimony whereof I affix my signature in the presence of twosubscribing witnesses.

{ANDREW W. STEIGER,

CHARLES GIBBS.

